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I have 9640 ip phone problem the ip phone has no display i plug it in and their is a power on it but their's no display.

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  • 105 Answers

Yeah, try different phones if you can just to make sure that the lines and power are working correctly. Also try to search the user manual for additional troubleshooting options.

Posted on Dec 01, 2013

Does the phone boot up? Have you tried a different phone at your desk?

Posted on Oct 01, 2009

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1 Answer

Avaya 9640 can't power on when network cable plugged in


Do you have a POE switch? you need power on the port to power the phone...

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My cisco ip phone 7960 is stuck in boot up mode after performing the soft reboot. i press 123456789*0#


You can try a couple of things: Unplug the power cable from the phone, hold dows the # key, and then plug the power cable in again. The phone begins its power up cycle. Release the # key after the Speaker button is no longer lit. You should see the following message on the phone: "Reset key sequence detected" Press 123456789*0# within 60 seconds after the Headset, Mute, and Speaker buttons begin to flash. If you enter this key sequence correctly, the phone displays this prompt: Keep network cfg? 1 = yes 2 = no In order to maintain the current network configuration settings for the phone when the phone resets, press 1. In order to reset the network configuration settings when the phone resets, press 2.
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How do you reset an Avaya 9620 IP Phone to factory default?


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How can I clear / reset a Cisco IP Phone 7910


How to set a Cisco IP phone to factory default Reset configuration of Cisco IP Phone (7910, 1911, 7940, 7941, 7960, 7961)

To set the Cisco IP phone to factory default completes the following steps: should be completed:

For 7940, 7941, 7960, 7961 phones:

1. Power up the phone (unplug power cable and plug in again and hold the # key.
2. Release # when lights start flashing.
3. Press 123456789*0#.
4. Press 1 to keep network configuration or 2 to lose the network configuration.

For 7906G and 7911G phones:
1. Power up the phone (unplug power cable and plug in again and hold the # key.
2. Release # when MWI starts flashing.
3. Press 3491672850*#.

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When the new extension boots up, it will ask for the extension number and password. Simple as that.

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Dead Polycom 501


u have the cable plugged in backwards
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KDC-9640 wont play


SINCE YOUR JENSEN ISNT WORKING HOW ABOUT YOU SEND ME THE POWER PLUG OR MAYBE SOME ADVICE WHERE I CAN GET ONE????????

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You need to ensure that each port that has a phone plugged into it is configured with power over ethernet configured switched on.

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